怎么把一个文件夹内的所有内容整个的复制到另一个文件夹中

Question

public void CopyDir(string path, string destPath) 
{ 
DirectoryInfo source = new DirectoryInfo(path); 
DirectoryInfo target = new DirectoryInfo(destPath); 
if(source.Exists) 
{ 
if(!target.Parent.Exists) 
throw new Exception(); 
if(!target.Exists) 
target.Create(); 
foreach(FileInfo file in source.GetFiles) 
{ 
file.CopyTo(...); 
} 
foreach(DirectoryInfo dir in source.GetDirectories()) 
{ 
CopyDir(dir.FullName, Path.Combine(target.FullName,dir.Name)); 
} 
} 

Answer 1

有人在论坛帖了一个方法，试试：public int GetFileCount()
          {     
               int ret = 0;
               foreach(Directive directive in Directives)
               {
                    if (SetCancel)
                    {
                         if (AskBeforeAbort())
                         {
                              //cancel for real
                              BackupCompleteEvent(EventArgs.Empty);
                              return 0;
                         }
                    }
                    ret += CountFilesInDir(new DirectoryInfo(directive.SrcDir));
               }
               return ret;
          }          public void StartBackup()
          {
               foreach (Directive directive in Directives)
               {
                    if (SetCancel)
                    {
                         if (AskBeforeAbort())
                         {
                              //cancel for real
                              BackupCompleteEvent(EventArgs.Empty);
                              return;
                         }
                    }
                    BackupDir(directive.SrcDir, directive.DestDir, directive.Overwrite);
               }
               BackupCompleteEvent(EventArgs.Empty);
          }          public int CountFilesInDir(DirectoryInfo rootDirInfo)
          {
               int fileCount = 0;
               FileInfo[] fileInfos = rootDirInfo.GetFiles();
               foreach (FileInfo fi in fileInfos)
               {
                    fileCount ++;
               }
               DirectoryInfo[] subDirInfos = rootDirInfo.GetDirectories();
               foreach (DirectoryInfo subDirInfo in subDirInfos)
               {
                    fileCount = fileCount + CountFilesInDir(subDirInfo);
               }
               return fileCount;
          }
          public void BackupDir(string srcDir, string destDir, bool overwrite)
          {
               DirectoryInfo srcDirInfo = new DirectoryInfo(srcDir);               if (!(Directory.Exists(destDir)))
               {
                    DirectoryInfo di = new DirectoryInfo(destDir);
                    di.Create();
               }               FileInfo[] fileInfos = srcDirInfo.GetFiles();
               foreach (FileInfo fi in fileInfos)
               {
                    string targetPath = Path.Combine(destDir, fi.Name);
                    if (File.Exists(targetPath))
                    {
                         if (fi.LastWriteTimeUtc > new FileInfo(targetPath).LastWriteTimeUtc) // overwrite
                         {
                              BackupEventArgs e = new BackupEventArgs(OperationTypeEnum.Overwrite, fi.FullName, targetPath);
                              BackupProcessEvent(e);
                              try
                              {
                                   fi.CopyTo(targetPath, true);
                              }
                              catch (IOException)
                              {                              }
                         }
                         else // skip
                         {
                              BackupEventArgs e = new BackupEventArgs(OperationTypeEnum.Skip, fi.FullName, targetPath);
                              BackupProcessEvent(e);
                         }
                    }
                    else // copy
                    {
                         BackupEventArgs e = new BackupEventArgs(OperationTypeEnum.Copy, fi.FullName, targetPath);
                         BackupProcessEvent(e);
                         try
                         {
                              fi.CopyTo(targetPath, true);
                         }
                         catch (IOException)
                         {
                              //do something here later...
                         }
                    }
               }
               DirectoryInfo[] dirInfos = srcDirInfo.GetDirectories();
               foreach (DirectoryInfo di in dirInfos)
               {
                    BackupDir(di.FullName, Path.Combine(destDir, di.Name), overwrite);
               }
          }

Answer 2

到这个帖子里自己找，还有vb.net的：http://www.experts-exchange.com/Programming/Programming_Languages/Dot_Net/VB_DOT_NET/Q_21052023.html

Answer 3

n种方法，
找到
System.io.Directory这个类和
System.io.File这个类
用他们的方法就ok了，
在一种就是用
System.Diagnostics.Process.start("copy d:\a d:\b");

Answer 4

可以用DirectoryInfo的方法，通过递归调用GetFiles和GetDirectory来进行复制，不过比较麻烦^_^

Answer 5

the easier way is to use Win32 API SHFileOperation to do the copying, seehttp://www.dotnet247.com/247reference/msgs/45/225766.aspxorhttp://www.thescarms.com/vbasic/fileops.asp

Answer 6

<form id="test" method="post" runat="server">
<asp:TextBox id="IDtb" style="Z-INDEX: 101; LEFT: 304px; POSITION: absolute; TOP: 80px" runat="server"></asp:TextBox>
<INPUT id="UP_FILE2" style="Z-INDEX: 102; LEFT: 8px; WIDTH: 246px; POSITION: absolute; TOP: 8px; HEIGHT: 22px" type="file" size="21" name="UP_FILE2" RUNAT="server">
<asp:button id="upbutton" style="Z-INDEX: 103; LEFT: 296px; POSITION: absolute; TOP: 8px" runat="server" Text="上传"></asp:button
</form>private void upbutton_Click(object sender, System.EventArgs e)
{
string tofolderPath= Server.MapPath("../mtebook/"+IDtb.Text+"/");//虚拟目录下有个mtebook文件夹
string fromfolderPath=UP_FILE2.Value.ToString().Substring(0,UP_FILE2.Value.ToString().LastIndexOf(@"\"));
DirectoryInfo source = new DirectoryInfo(fromfolderPath);
Directory.CreateDirectory(tofolderPath);
DirectoryInfo target = new DirectoryInfo(tofolderPath); 
if(source.Exists) 
{ 
FileInfo[] filesources = source.GetFiles();
foreach (FileInfo filesource in filesources)
{
filesource.CopyTo( tofolder+filesource.Name,true);
}
}
}
谢谢楼上仁兄的帮助，这段程序我能试过了好使！